Attachment for printing-presses.



F. E. MEEHAN. ATTACHMENT FOR PRINHNGPRESSES.

APPLICATION FILED MAYT, 19!?- I Ptented July 31,1917.

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FIG. I.

5 Frederick E. Meehqm/ "qfio wm @owum F. E. M EEHAN. ATTACHMENT FORPRINTING PRESSES.

APPLICATION FILED MAY]. 19H. 1,234,785. Patented July 31, 1917.

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7 8] wve/vvboz Frederick ILMe'hwn FREDERICK E. MEEHANY', orPHILADELPHIA, rnNns veNIn.

ATTACHMENT FOR PRINTINGPB.ESS ES.

Specification of Letters Patent.

Patented July 31 191 *7.

Application filed May 7, 1917. Serial No. 166,819.

To all whom it may concern:

' Be it known that I, FRn nRIcK E. MEE- HAN, a citizen of the UnitedStates, residing at Philadelphia, in the county of Philadelphia andState of Pennsylvania, have invented certain new and useful Improvementsin Attachments for Printing-Presses, of which the following is aspecification.

My invention relates to an attachment for printing presses andparticularly relates to a device for regulating the pressure of theink-rolls upon the type or plates held in the chase.

When printing from type or plates having very fine rulings and shadedsurfaces it is desirable to reduce the pressure of the ink-rolls uponthe type and plates and thus reduce the amount of ink which will beplaced upon them by the ink-rolls.

The object of my invention is to provide an attachment for printingpresses which may readily be placed and secured upon the portion of theframe of the press which forms the tracks over which the ink-rollerstravel, for the purpose of raising the inkrolls away from the type andreduce the pressure of the ink-rolls; a further object of my inventionis to provide an attachment which will hold one or more filling stripsbetween it and the frame so the various adjustments may be obtained; anda further object of my invention is to so construct the attachment thatit will not become disengaged by the operation of the ink-rolls andwhich will not interfere with the operation of the ink-rolls.

Referring to the accompanying drawings; Figure 1, is a side elevation ofa portion of the frame of a printing press and the inkrolls and showingmy invention attached to the frame; Fig. 2, is a plan view of Fig. 1;and Fig. 3, is a perspective view of my invention detached.

In the drawings in which like reference characters refer to like parts,1 and 2 represent the frame members of a printing press. The shaft 3 iscarried by the frame members, and upon the shaft 3 are pivoted the arms5 and 6 having sliding rods 7 carrying the saddles 9, in which arerotatably mounted the spindles 10, of the ink-rolls 12. Rollers 14, areloosely mounted upon the spindles 10. Said rollers 14 run upon thestrips of metal, and provided with means 7 for securing them upon thetracksformed by the edges of theframemembers l and 2.

The plates 21 are provided with lips '23, which are bent at right anglesto the plate 21, and are adapted to embrace the edges of the framemembers 1 and 2, and hold the plates 21 from slipping sidewise. Theupper end of each plate 21, is provided with an enlarged portion 24having an opening 25, formed therein which is adapted to fit over theapex 4 of the frame members, (as shown in Fig. 1). The lower end of eachplate is provided with an opening 27, or other suitable means, forattaching a spring 29, which in turn is secured to a bracket 30, havinga set-screw 31 for securing it to the frame member.

The spring 29, exerts a tension upon the lower end of the plate 21,which holds the said plate tightly upon the edge of the frame member.The spring 29 also permits the upper end 24 of the plate 21 to bereadily attached to, or detached from the frame member. The enlargedupper end portion 24, forms a finger grip for lifting-the upper end ofthe plate 21 oil of the apex 4 of the frame member.

A filling strip 32, is shown, in Fig. 1, inserted between the plate 21and the edge of the frame member 1. Said filling strip 32 may be made ofpaper or any other suitable material, as it is held in place andprotected by the plate 21. Any number of filling strips 32 may be usedunder the plate 21, to obtain the desired thickness.

The plate 21 and the filling strips 82, when secured upon the edges ofthe frame members will increase the distance between the ink-rolls andthe type, and reduce the pressure which the ink-rolls will exert uponthe type. The plates 21 constructed in this manner will not interferewith the operation of the ink-rolls and the plates will always remain intheir proper position and also hold the filling strips in place.

Having thus described my invention I claim and desire to secure byLetters Patent:

1. In a printing press having ink-rolls and a frame forming a track forthe ink-rolls, a plate adapted to be placed between the said track andthe ink-rolls, means for detachably securing the upper end of the plateto the frame and a spring having one end secured to the frame and itsother end attached to the lower end 01": the plate.

2. In a printing press having ink-rolls and a frame forming a track forthe inkrolls, a plate adapted to be placed between the said track andthe ink rolls, said plate being approximately the same Width as thewidth of the frame, an end portion formed upon said plate of greaterWidth than the width of the frame and having an aperture formed thereinadapted to receive the end of the frame thereby securing the end of theCopies of this patent may be obtained for plate to the frame and meansfor yieldingly V securing the opposite end of the plate to the frame.

3. An attachment for a printing press comprising a flexible plate,retaining lips formed upon the sides of the plate, means for detachablysecuring one end of the plate to the press and a spring for connectingthe other end of the plate with the press.

4. An attachment for a, printing press comprising a flexible plate,retaining lips spring to the prlnting press.

In testimony whereof I afiix my s1 gnature h in presence of twowitnesses.

FREDERICK E. MEEI'IAN.

lVitnesses: V

ROBERT M. WALLACE, R. T. I-IAT'roN,

five cents each, by addressing the Commissioner of Patents,

Washington, D. 0.

fit over a portion of the print: a spring secured to the lower end r

